PACIFIC COAST OLIU0CH.ETA. 



J 87 



REFERENCE TO LETTERS ON PLATES. 



a. c. gl. anterior calcic glaud. 



a.f. anterior fold of iiephridiiuu. 



a. nephr. anterior nephridia. 



a. spd. anterior spermduct 



atr. atrium. 



bd. body-wall. 



bl. blood vessel or capillaries. 



bl. s. blood sinus. 



br. bridge in nephridiuni. 



buc. buccal cavity. 



c. clusters of lunate cells. 



c. c. columnar cells. 



c. ep. coelomic epithelium. 



c. gl. calciferous glands. 



ch. discharge chambers of glands. 



chlo. chloragogeu cells. 



cil. ciliated epithelium. 



cl. c. clitellar cells. 



cl. clitellum. 



c. m. circular muscles. 



com. commissures. 



c. r. ciliated rosettes or sperm-funnels. 

 «. t. connective tissue. 



<•». cuticle. 



d. gl. dark staining glands. 

 d. pr. dorsal pore. 



d. V. dorsal vessel. 



e. epithelial cells. 

 ept. epithelium. 

 gl. glands. 



gl. c. unicellar glands. 



gl. pr. glandular part of prostate. 



gizz. gizzard. 



h. heart. 



hi/, hypodermis. 



('. s. gr. intersegmental groove. 



/. c. large cells. 



I. m. longitudinal muscles. 



m. muscles. 



m. air. muscular atrium. 



mes. mesenteric tissue 



TO. pr. muscular prostate. 



n. nephridia. 



n. c. nerve cells. 



ne. nerve ganglion. 



nee. neck of nephridium. 



neph. nephridium. 



neph. p. nephropore. 



ces. cesophagus. 



ov. ovary. 



ovd. oviduct. 



org. sense organ. 



/). c. gl. posterior calciferous diverticulum. 



/)./. posterior fold, nepliridium. 



phx. pharynx. 



p. neph. posterior nephridia. 



pr. prostate. 



p. spd. posterior spermduct. 



pr. slo. prostomium. 



ps. penial seta?. 



prl. peritoneum. 



.w. secreted matter. 



«. i7it. sacculated intestine. 



nep. gl. septal gland. 



Sep. septum. 



s. gl. snprapharyugeal glands. 



s. org b. sense organ cells in equatoreal zone. 



s. org. pr. sense organ cells in prostomium. 



spc. sjjerm-cells. 



spd. spermduct. 



spgn. spermatogonia. 



spr. spur of nephridium. 



s. ps. sac with penial setae. 



sp. s. sjierm-sacs. 



s. ph. sgl. subpharyngeal glands. 



spth. spermatheca. 



spth. p. spermathecal pore. 



I. testes. 



t. m. transverse muscles. 



trb. trabecula. 



ih. spd. thicker part of spermduct. 



lu. tubular intestine. 



tub p. tubercula pnbertatis. 



ty. typhlosole. 



u. c. unicellar glands. 



V. g. ventral ganglion. 



V. V. ventral vessel. 



V. sgl. ventral gland. 



w. " windings " of uephridial ducts. 



